fix: Newly added agent not following business hours (#29529)

.changeset/quick-coats-protect.md

apps/meteor/app/lib/server/functions/saveUser.js

...app/livechat/server/business-hour/AbstractBusinessHour.ts

.../app/livechat/server/business-hour/BusinessHourManager.ts

apps/meteor/app/livechat/server/business-hour/Helper.ts

apps/meteor/app/livechat/server/business-hour/Single.ts

apps/meteor/app/livechat/server/hooks/afterUserActions.ts

apps/meteor/app/livechat/server/hooks/saveAnalyticsData.ts

apps/meteor/app/livechat/server/lib/Livechat.js

apps/meteor/app/livechat/server/lib/logger.ts

apps/meteor/app/livechat/server/sendMessageBySMS.ts

apps/meteor/app/livechat/server/startup.ts

...ee/app/livechat-enterprise/server/business-hour/Helper.ts

.../app/livechat-enterprise/server/business-hour/Multiple.ts

...e/app/livechat-enterprise/server/hooks/onCloseLivechat.ts

...r/ee/app/livechat-enterprise/server/hooks/resumeOnHold.ts

apps/meteor/ee/app/livechat-enterprise/server/startup.ts

apps/meteor/lib/callbacks.ts

apps/meteor/server/models/raw/Users.js

apps/meteor/tests/data/livechat/businessHours.ts